After the proposal, Jordan walks into the barn wearing a sweater over a plaid shirt. As he hugs the well-wishers, his sweater is not on, but when he steps back to talk to everyone, the sweater is back on.
At the food truck scene when Molly takes Cory photo her finger is in front of the lens when she clicks the shutter.
A real photographer never takes a shot by using the back screen on the camera, always the viewfinder. In bright light it is impossible to see the screen. The back screen is only used to check the shot taken. Guess no one told her.
It is not realistic to think that all their friends from Oregon would pay to come to Beverly Hills for this wedding, unless the TV program was going to pay for all that travel!.
At time 40:00, Cory and Molly meet up and go get a bite to eat. They meet up at 6:00 PM. The date is around 2-3 weeks before Valentine's Day. At this time of year in Hollywood, the sun sets around 5:15 PM, thus it should actually be dark outside when they go on their bike ride for crepes.